Hello all, have a jvc here with no picture, shine a torch on the screen and you can see the menu screen, it's a vestel 17IPS20 main board, I have checked the fuse on the inverter board and it's ok. Any ideas?
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Re: JVC LT-40TW51J No Picture
T con board I meant
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Re: JVC LT-40TW51J No Picture
He says if the voltage on the bank of diodes drops to 115 volts there's an led out. Mine drops to 123 volts, close enough, hmmm anyone had the same thing?Comment
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Re: JVC LT-40TW51J No Picture
I'd say that's close enough. Yes, I've replaced LEDs on Vestels.Comment
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Re: JVC LT-40TW51J No Picture
How much of a pita is it to do? The big metal surround has to come off I gather?Comment
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Re: JVC LT-40TW51J No Picture
The surround needs removing, then the LCD then the polarising sheets carefully keeping them in order. The LEDs will then be visible on strips. Identify the faulty one(s) and replace directly or by using the stacking method. https://www.youtube.com/watch?v=RxwdC7V5Ue0Comment
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Re: JVC LT-40TW51J No Picture
Il have a go as soon as I get a minute, I'd like to fix it just for the challenge thanks diif,,il let you know how it go's
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Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
Hi, this is my personal laptop, which the original board (lets call it Board A) blew up PU8700 (TPS51486), making a hole on the board, i had left the laptop at my desk one day with the battery fully charged and didn't touch it for a week, but when i tried to turn it on it didn't
Thought the battery was dead, so i plugged in the charger then tried to power on, the power LED blinked once, charged LED still orange, unplugged the charger, plugged in again and I noticed the "magic smoke" smell, so i unplugged the charger, removed the back cover and saw the blown IC (the "magic... -
Hi all!
I've recently run into an issue with my Samsung UN55H8000AF LED TV displaying no image. I've done quite a bit of research in terms of what could be wrong with it. Below are the steps I've taken prior to reaching out here for some assistance:
1. I've tried replacing the T-Con board (BN95-01594A), twice and have still experienced the same issue with all the boards I've tested with.
2. I've tried to remove one side of the ribbon cable that goes from the T-Con board to the panel and still not getting any image on left or right side.
3. I've checked voltages... -
Hey guys great forum glad to have found it. I bought a Sony XBR 65X900C cheaply because it didn't work. No signs of life at all not even a light/led. All I hear is a brief high voltage sound when I throw the power to it.
Didn't see any obvious signs of damage so right away started checking voltages. This is what I see:
Power Board Connector that goes to Main board
CN6401
Pin 01 NC
Pin 02 NC
Pin 03 "BL_ON": 0V
Pin 04 "N/C"
Pin 05 "STBY 3.3V": 3.5V
Pin 06 "GND": N/C
Pin 07 "AC_OFF"... -
Hello, I came here after finding some similar questions asked on other monitors and hope someone here can help me get an ancient Viewsonic VP230mp (23" 4:3 LCD) back to working condition.
First a little background, I have a background in computer and electrical engineering, and I'm smart enough to know I know nothing about LCD displays and how they work. For this topic I'm as green as they come.
When the display is turned on the viewsonic logo displays in the uppper left for 2 seconds then the screen goes black, the power LED is green (on) and when a computer is connected...
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